dmabuf.h

ASM编写调用VxD。 以及VxD编写的科普 源代码

// DMABUF.h - include file for VxD DMABUF
#define DMABUF_ID                 0xDB0
#define DMABUF_FUNC_ALLOCBUFFER   0x1000
#define DMABUF_FUNC_FREEBUFFER    0x1001

#define DMABUF_ALREADY_ALLOCED	  0x0001
#define DMABUF_SIZE_TOO_BIG	      0x0002
#define DMABUF_BUF_NOT_AVAIL	  0x0003
#define DMABUF_BUF_NOT_ALLOCED    0x0004
#define DMABUF_INVALID_PARAMETER   0x0005
#define DMABUF_INVALID_FUNC        0x0006

typedef struct
{
   DWORD Size;
   DWORD PhysAddr;
   DWORD LinAddr;
} DMA_BUFFER_DESCRIPTOR;